Number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau
Guinea-Bissau: Number of one-year-olds who are not vaccinated against diphtheria was 0.5579 one-year-olds per square kilometre in 2023. ▼ Falling
Number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau, 1983–2023
Source: Statizoid (derived). Measured in one-year-olds per square kilometre.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau stood at 0.5579 one-year-olds per square kilometre.
That represents a change of up 0.9% on the previous year and up 112.6% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau peaked at 1.11 one-year-olds per square kilometre in 1983 and was at its lowest, 0.257 one-year-olds per square kilometre, in 2012.
Guinea-Bissau ranks 34th of 192 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 41 years of available data.
Number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau, year by year
| Year | one-year-olds per square kilometre | Change |
|---|---|---|
| 1983 | 1.11 one-year-olds per square kilometre | — |
| 1984 | 1.01 one-year-olds per square kilometre | -8.3% |
| 1985 | 1.03 one-year-olds per square kilometre | +1.4% |
| 1986 | 0.6728 one-year-olds per square kilometre | -34.6% |
| 1987 | 0.5771 one-year-olds per square kilometre | -14.2% |
| 1988 | 0.4403 one-year-olds per square kilometre | -23.7% |
| 1989 | 0.602 one-year-olds per square kilometre | +36.7% |
| 1990 | 0.5163 one-year-olds per square kilometre | -14.2% |
| 1991 | 0.4939 one-year-olds per square kilometre | -4.3% |
| 1992 | 0.4477 one-year-olds per square kilometre | -9.4% |
| 1993 | 0.5182 one-year-olds per square kilometre | +15.7% |
| 1994 | 0.3756 one-year-olds per square kilometre | -27.5% |
| 1995 | 0.8131 one-year-olds per square kilometre | +116.5% |
| 1996 | 0.7068 one-year-olds per square kilometre | -13.1% |
| 1997 | 0.5633 one-year-olds per square kilometre | -20.3% |
| 1998 | 0.7098 one-year-olds per square kilometre | +26.0% |
| 1999 | 0.8616 one-year-olds per square kilometre | +21.4% |
| 2000 | 0.8096 one-year-olds per square kilometre | -6.0% |
| 2001 | 0.757 one-year-olds per square kilometre | -6.5% |
| 2002 | 0.7027 one-year-olds per square kilometre | -7.2% |
| 2003 | 0.6649 one-year-olds per square kilometre | -5.4% |
| 2004 | 0.611 one-year-olds per square kilometre | -8.1% |
| 2005 | 0.5529 one-year-olds per square kilometre | -9.5% |
| 2006 | 0.5107 one-year-olds per square kilometre | -7.6% |
| 2007 | 0.4682 one-year-olds per square kilometre | -8.3% |
| 2008 | 0.4236 one-year-olds per square kilometre | -9.5% |
| 2009 | 0.3752 one-year-olds per square kilometre | -11.4% |
| 2010 | 0.3234 one-year-olds per square kilometre | -13.8% |
| 2011 | 0.2709 one-year-olds per square kilometre | -16.2% |
| 2012 | 0.257 one-year-olds per square kilometre | -5.1% |
| 2013 | 0.2624 one-year-olds per square kilometre | +2.1% |
| 2014 | 0.2875 one-year-olds per square kilometre | +9.6% |
| 2015 | 0.2902 one-year-olds per square kilometre | +0.9% |
| 2016 | 0.3117 one-year-olds per square kilometre | +7.4% |
| 2017 | 0.4369 one-year-olds per square kilometre | +40.2% |
| 2018 | 0.3728 one-year-olds per square kilometre | -14.7% |
| 2019 | 0.455 one-year-olds per square kilometre | +22.0% |
| 2020 | 0.5416 one-year-olds per square kilometre | +19.1% |
| 2021 | 0.6944 one-year-olds per square kilometre | +28.2% |
| 2022 | 0.5529 one-year-olds per square kilometre | -20.4% |
| 2023 | 0.5579 one-year-olds per square kilometre | +0.9% |
Guinea-Bissau compared with similar countries
- Guinea-Bissau's 0.5579 one-year-olds per square kilometre is above the median for low income countries, which is 0.4431 one-year-olds per square kilometre, 1.3× the median. (25 countries reporting)
- Guinea-Bissau's 0.5579 one-year-olds per square kilometre is above the median for Sub-Saharan Africa, which is 0.2848 one-year-olds per square kilometre, 2.0× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1995 | +116.5% | 0.3756 one-year-olds per square kilometre | 0.8131 one-year-olds per square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.7774 one-year-olds per square kilometre | 0.4403 one-year-olds per square kilometre | 1.11 one-year-olds per square kilometre | 7 |
| 1990s | 0.6006 one-year-olds per square kilometre | 0.3756 one-year-olds per square kilometre | 0.8616 one-year-olds per square kilometre | 10 |
| 2000s | 0.5876 one-year-olds per square kilometre | 0.3752 one-year-olds per square kilometre | 0.8096 one-year-olds per square kilometre | 10 |
| 2010s | 0.3268 one-year-olds per square kilometre | 0.257 one-year-olds per square kilometre | 0.455 one-year-olds per square kilometre | 10 |
| 2020s | 0.5867 one-year-olds per square kilometre | 0.5416 one-year-olds per square kilometre | 0.6944 one-year-olds per square kilometre | 4 |
Countries ranked near Guinea-Bissau
- 31 Malawi 0.5979 one-year-olds per square kilometre compare
- 32 Grenada 0.5695 one-year-olds per square kilometre compare
- 33 Madagascar 0.5629 one-year-olds per square kilometre compare
- 35 Honduras 0.5523 one-year-olds per square kilometre compare
- 36 Equatorial Guinea 0.4735 one-year-olds per square kilometre compare
- 37 Cameroon 0.4712 one-year-olds per square kilometre compare
More health data for Guinea-Bissau
- Un projection of annual infant deaths, annual growth rate -1.67 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.7721 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,070 deaths per 1,000 people (2090)
- Number of infants who die before age 1 941 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate 0.899 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0.0001 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0664 units per person (2025)
- Population ages 00-04, male, annual growth rate 0.8987 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0.0001 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau?
- Number of one-year-olds who are not vaccinated against diphtheria in Guinea-Bissau was 0.5579 one-year-olds per square kilometre in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Guinea-Bissau?
- The highest recorded value was 1.11 one-year-olds per square kilometre in 1983.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Guinea-Bissau?
- The lowest recorded value was 0.257 one-year-olds per square kilometre in 2012.
- How does Guinea-Bissau rank for number of one-year-olds who are not vaccinated against diphtheria?
- Guinea-Bissau ranks 34th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Guinea-Bissau?
- Over the last ten years it is up 112.6%. The long-run trend across the full record is falling.
- Where does this Guinea-Bissau data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 41 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus ÷ Land area (sq. km)
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
- Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.